Mining-machine



Patented Aug. 19, 1919.

C. B. OFFICER'.

MINING MACHINE.

APPLICATION msn Dc.5.1911.

` UNiTED sTATEs PATENT oEEicE.

CHARLES BRAND OFFICER, OF CLAREMONT, NEW HAMPSHIRE, ASSIGNOR TO SULLIVAN MACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS.

MINING-MACHINE.

1,313,869. Specification f Letters Patent. Patented Aug. 19, 1919. Application led December 5, 1917. Serial No. 205,649.

T0 all whom t may concern: bodiment which my invention may assume Be it known that I, CHARLES B. Orrrcnn, in practice, illustrating' the same as applied 55 a citizen of the United States, residing at to a mining machine of a standard form.

Claremont, in the county of Sullivan and In these drawings,-

State of New Hampshire, have invented cer- Figure 1 is a side elevation of a mining tain new and useful Improvements in Minmachine with its sumping pan in its ening-Machines, of which the following is a tended position occupied at the beginning- 60 full, clear, and exact specification. of the sumping operation and during load'- My invention relates to mii'iing machines. 111g and unloading.

It has heretofore been proposed to pi'o- Fig. 2 is a side elevation of the machine vide a mining machine of the self-propelled showing the suinping pan in its retracted short-Wall type with an automatically movposition `occupied as the machine completes 65 able Sumpjng pim 0r frame Slidably conits snmping opei'ation and as it moves across naci-,ed with the Cutter bm and fram@ 0f the face, certain parts here being omitted to the machine and adapted to support and facilitate illustration.

guide the machine during the suinping` op- Fig. 3 is a perspective view of the. sumperation and to elevate the rear end of the lng pan. 70

u 1i l same and thereby depress the point of the 110. 4 1S 21 transverse sectional view of -bmf in the desired manner dui-ing the g1-5mg; the pan and machine taken substantially on verse cut. In such devices a rear bottom line 4-4 of Fig. Q, the details of the `inplate has be@ provided on this Sumpng terior of the mining machine being omitted pan or frame which is adapted to be moved t0 facilitate illustration. 75 longitudinally relative to the shoe or bot- In this illustrative construction it will be tom plate 0f th@ machine and t0 underlie OlSOl'VCtl that I lltVG SlIOWIl d Self-propelled that Shoe in L11 its Operative pogitioug, the mining machine frame l of standard forni,

Sam@ Occupymg a position under the from the saine being equipped with the usual eutend of the shoe during the suinping operater bar 2 carrying the cutter chain 37 and be- 80 tion and during the loading and unloading ing provided with suitable feeding mechaof the machine, and occupying a position nism adapted to feed the bar in under the beneath the rear end of the shoe during the coal during the sumping operation, and to 'cut across the face. feed the same transversely across the face My invention has for its object to provide after its cut, these means being shown hereimproved means whereby a sumping pan of in as includinga driving sprocket #L and a the character set forth may be used in conchain 5. As shown, this machine frame l is 35 nection with a mining machine with greater also provided with a shoe or lower bottom facility. A further and more specific obplate G forming a smooth surface on which ject of my invention is to provide improved the machine is adapted to slide upon the means whereby when said sumping pan is mine bottom, and carries a longitudinally in its sumping or loading and unloading podisposed skeleton sumping pan or frame T 40 sition the rear bottom plate on the same ofthe type forming the invention of one may be disposed in a plane substantially Jacob M. London, adapted to act as a guide flush with the plane of the bottom plate of and support for the machine frame and bar. the mining machine in such a manner that As usual in a London4 pan, this pan is slidall difficulty arising from this plate digging ably connected to the cutter bar '2 and pro- 45 into the mine bottom, is efl'ectually overvided with spaced transverse front and rear come at the same time that it is made possibottom plates 8 and 9 at its opposite ends, ble for this plate, when desired, autoniatiadapted to underlie and guide the machine cally to assume its supporting and tilting frame and cutter bar, respectively. As position beneath the rear end of the shoe of usual, suitable means, herein in the form of 50 the machine as the latter is sumped in under a pin 10 receivable in the pan and bar, are

the coal, preparatory to the transverse cut. also provided to lock the pan in its ex- In the accompanying drawings` I have tended position. shown for purposes of illustration one em- In my improvement, I have provided improved means whereby the several plates on the sumping pan may, if desired, be disposed in the plane of the machine shoe in order to facilitate movement of the machine, these means also, when desired, permitting one of these plates toi be disposed in the plane of the shoe while the other is disposed beneath that plane and the rear end of the machine in such a manner as to tilt the bar. These means may, obviously, assume various forms. In Vthe illustrative form of my invention shown herein, however, it will be observed that the shoe 6 is cut away lbeneath the'front end of the machine and provided with an upwardly inclined edge 11. It will also be observed that at a point above and at either side of this inclined edge 11, but preferably slightly in front of the same, suitable means inthe form of laterallyextending pins 12 are provided on the Side of the machine frame 1, adapted to coperate with the recip rocatory sumping frame 7 so that either the rear bottom plate 9 thereof or the front bottom plate 8 thereof may be received iii the Space thus formed beneath the front end of the frame of the machine 1 and in advance of the front edge 11 of the shoe 6. ItV will also be noted that the sides of the frame 7 are provided with suitable longitudinally disposed slots or grooves 13 so that av relative movement may take place between the frame 7 and the -pins 12, and that at their rear ends these grooves 13 communicate with short, downwardly inclined grooves 14, in turn communicating with other horizontally disposed grooves 15 which 'are located at the extreme rear ends of the frame 7. Attention is here also directed to the fact that, as shown herein, the rear edge of the rear bottom plate 9 on the frame 7 is provided with an inclined surface 16 adapted to cooperate with the inclined surfaceV 11 on the shoe 6, as hereinafter more fully brought out, and that at the rear end of the frame 1 and on opposite sides of the same, laterally extending pins 17 are provided adapted to be received in the grooves 15 and coperate with the pins 12 when the parts are in the position shown in Fig. 2.

Inthe operation of a mining Vmachine equipped with my improved mechanism, it

will be noted that in the extended position of the frame 7 shown in Fig. 1, z'. c. that position which the parts occupy after the withdrawal of the bar from the coal, during loading and unloading, and at the beginning of the next sumping cut, the rear bottom plate 9 of the'frame 7 is disposed in the space beneath the front end of the frame and in advance of the front edge of the shoe 6, with its inclined edge 16 in engagement with the inclined edge 11 of the shoe 6, the pins 12 then occupying the position shown in the short, horizontal slots 15. Obviously, With the parts in this position the plate 9 will form a continuation of the shoe 6, the

vfrom,'the same may move freely and without any digging up of the bottom., However,

when it is desired to start a new cut, that is, to begin -the next sumping operation, it will be noted that by removing theV pin 10 the machine may be freely moved relative to the pan 7 in a well known manner by meansrof its sprocket 4 and chain 5,V and that as a `result of the operatiton of these elements, the machine will be so reciprocated relative to the pan. Duringthis movement it will be noted that theinclinedV edge 11 of the shoe 6 will ride up over the inclined edge 16 of the plate'9 under the guidance ofthe pins 12 which simultaneously move in the inclined grooves 14 on the frame 7, so that the shoe'6 may pass over the plate 9 toward the position shown in Fig. 2. Inthis position, z'. e. the position of the parts at the completion of the sumping operation and during the translcut, the plate 9 then being disposed beneath f the rear end. of the shoe6 in such a manner as to elevate the rear end of the machine and thus tilt down the tip `of thebar, while the front plate 8 of the frame 7 is disposed within the space beneath the front end of the frame 1 and in advance of the inclined edge 11 of the shoe 6. Obviously, after the completion ofthe transverse cut the parts will be automatically returned to the position shown in Fig. V1 as Athe machine is withdrawn from the cut, 'and may be locked in that position during loading and unloading by simply inserting the pin 10.

As a result of my improvement, it will be observed that not only is an entirely smooth shoe provided effective substantially throughout the entire length of the machine when the sumping frame is extended and thus eliminating all difficulty with tearing up the bottom during transport, but that at the same time it is possible for the sumping pan to function as a guide in its well known manner during the sumping operation and to act as a supporting and tilting meansofor the machine during its transverse cut. Attention is also directed to the fact that through the provision of my improved vantages of my improved construction will, however, be clearly apparent tothose skilled in the art.

l/Vhile Ihave in this application specifically described one embodiment which my invention may assume in practice, it will be understood that the form of the same shown herein is used for purposes of illustration and that the invention may be modified and embodied in other forms without departing from its spirit or the scope of the appended claims. y

IVhat I claim as new and desire to secure by Letters Patent is:

1. In a mining machine, a machine 'frame having a cutter bar thereon, and means operatively connected telescopically with said frame including a member disposable in different longitudinal positions beneath the bottom of said frame or in the plane of the bottom thereof.

2. In a mining machine, a machine frame having a cutter bar thereon, and means operatively connected telescopically with said frame including a rear bottom plate disposable in different longitudinal positions beneath the bottom of said frame or in the plane of the bottom thereof.

3. In a mining machine, a machine frame having a cutter bar thereon, and means operatively connected telescopically with said frame including front and rear bottom plates disposable in the plane of the bottom of said frame.

4. In a mining machine, a machine frame having a cutter bar thereon and a shoe, and a sumping pan telescopically connected with said frame and having front and rear bottom plates, said plates and shoe being adapted to be disposed in a single plane.

5. In a mining machine, a machine frame having a cutter bar thereon and a shoe, and a sumping pan telescopically connected with said frame and having front and rear bottom plates, said plates and shoe being adapted to be disposed in a single plane when said pan is in its extended position.

6. In a mining machine, a machine frame having a cutter bar thereon and a shoe, and a sumping pan telescopically connected with said frame and having front and rear bottom plates, said plates and shoe being adapted to be disposed in a single plane or in a plurality of substantially parallel planes.

7. In a mining machine, a machine frame having a cutter bar thereon and a shoe, and a sumping pan telescopically connected with said frame and having front and rear bottom plates, said rear plate being adapted to be disposed in the plane of said shoe and also in a parallel plane.

8. In a mining machine, a machine frame having a cutter bar thereon and a shoe, a sumping pan slidably connected to said bar and telescopically'connected with said machine frame and having a rear plate disposable in the same plane as said shoe, and means whereby said machine frame may be elevated as the same is moved relative to said pan.

9. In a mining machine, a machine frame having a cutter bar thereon and a shortened shoe, and a sumping pan telescopically connccted with said frame and slidably connected to said bar and having a rear bottom plate disposable beneath said frame and adjacent the front edge of said shoe.

10. In a mining machine, amachine frame having a cutter bar thereon and a shoe, a sumping pan slidably connected to said bar and telescopically connected with said frame, and operative connections between said machine frame and sumping pan including a guiding member and a plurality of relatively inclined slots coperating therewith.

11. In a mining machine, a machine frame having a cuttcrlbar thereon and a shoe, a sumping frame slidably connected to said bar, and operative connections between said machine frame and sumping frame including a guiding member and aplurality of horizontal slots and an intermediate inclined slot for cooperating therewith.

12. In a mining machine, a machine frame having a cutter bar thereon and a shoe, a sumping frame slidably connected to said bar, and operative connections between said machine frame and sumping frame including a plurality of guiding members at opposite ends of said machine frame and a plurality of communicating slots disposed at different levels and formed in said sumping frame.

13. In a mining machine, a machine frame having a cutter bar thereon and a shortened shoe, and a sumping pan slidably connected to Said bar and frame and having a bottom plate disposable in advance of the front end of said shoe, the bottom plate on said sumping pan being adapted to be disposed beneath the rear end of said shoe.

14. In a mining machine, a machine frame having a cutter bar thereon and a shortened shoe having an inclined front edge, and a sumping frame slidably connected to said bar and having a rear bottom plate provided with a cooperating inclined rear edge, said plate being disposable beneath said frame and with its inclined rear edge adjacent the front edge of said shoe.

15. In a mining machine, a machine frame having a cutter bar thereon and a shoe, a sumping pan engaging said bar and telescopically connected with said machine frame and having a rear plate disposable in the plane of said shoe, and means whereby said machine frame may be elevated as the same is moved relative to said pan.

16. In a mining machine, a machine frame having a cutter bar thereon and a shortened shoe, and asumping pan telescopically connected With said frame anrdvengaging said bar and having a rear bottom plate disposed l beneath said frame and adjacent the front edge of said shoe.

17. In a mining machine, a machine frame having a cutter bar thereon and a shoe,` a sumping panslidably connected to said bar and telescopically connected With saidY machineframe and havinga rearplate disposable in the plane of said shoe,` and means carried by said pan whereby said machine frame may be elevated as the same is moved relative to said pan. v y

18. In a mining machine, a machine frame having a cutter bar thereon and a shortened shoe, and a sumping pan telescopically conneoted With said frame and shoe and slidably connected to said bar and having a 20 rear bottom plate disposable ,beneath said frame and adjacent .the front-edge of said shoe.

In testimony whereof I aiX my signature.

CHARLES BRAND OFFICER;

opies of `this patent may be obtained for fivev cents each, by addressing the Commissioner of Patents.

' Washington, D. G. i 

